Home / 220,996.13-331,502.40-71,238.59

Finding the Fourth Proportional to 220,996.13, 331,502.40 and 71,238.59

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Solution

The fourth proportional to 220,996.13, 331,502.40 and 71,238.59 is: 106,860.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,996.13 : 331,502.40 = 71,238.59 : x
  2. Step 2: Convert to fraction form
    220,996.13/331,502.40 = 71,238.59/x
  3. Step 3: Cross multiply
    220,996.13x = 331,502.40 × 71,238.59
  4. Step 4: Simplify right side
    220,996.13x = 23,615,761,900.10
  5. Step 5: Solve for x
    x = 23,615,761,900.10/220,996.13
  6. Step 6: Final answer
    x = 106,860.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.